Albert a



UNITED STATES- NPATENT OFFICE.

ALBERT A. PAGE, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO THE SARGENT daCOMPANY, OF SAME PLACE.

DOOR-BELL.

SPECIFIGATION forming part of Letters Patent No. 505,277, datedSeptember 19, 1893.

Application filed February 6, 1893. Serial No. 461,145. (No model.)

State ot Connecticut, have invented a new Improvement in Door-Bells; andI do hereby declare the following, when taken in connection withaccompanying drawings and the letters of reference marked thereon, to bea full, clear, and exact description of the same, and which saiddrawings constitute part of this specification, and represent, in

Figure l, a View in side elevation of a bell constructed in accordancewith my invention; Fig. 2, a view thereof in vertical central section;Fig. 3, a plan View of the device with the bell removed; Fig. 4C, areverse plan view of the device; Fig. 5, a sectional view of the hammer.

My invention relates to an improvement in door-bells, the Object beingto produce a simple, inexpensive, and effective device, composed of fewparts, which are easily assembled and taken apart, not liable toderangement, and arranged so that the train will not be exposed by theremoval of the gong or bell proper. l

With these ends in view, my invention consists in the constructionhereinafter described, and particularly recited in the claims.

In carrying out my invention, I employ a circular hollow base A, which Ipreferably strike up from sheet-metal, providing its edge with openingso, whereby the bell is secured in place the said base virtuallycomprising a iiat circular face, and an annular ilange offsetting fromthe edge-thereof. To the outer face of this base, I secure by rivets BB, a sheetmetal stirrup-shaped bell-support B', shaped at its upper endto form a flat bearing or seat B2, upon which the bell C, is rested, thecenter of the said bearing having a threaded screwhole receiving thescrew D, which is passed through the central opening of the bell, andwhich is furnished at its outer end with a knob D', shouldered at itslower end tor engagement with the bell. The said bell-support B isplaced upon the base A, so that the screw-hole in its seat or bearing isdirectly over an opening A', formed in the center of the base. Withinthe said hollow base and in a plane parallel with the plane thereof, Ilocate a movement-plate E, which I secure in main-wheel G, thesecond-wheel H, and the pinion I, all of the said parts being supportedby the base and plate.

` The main-wheel G, has a hub G', constructed with a squared opening G2,which receives the key J, by means of which the train is actuated andthe bell sounded. The outer end of the said hub has bearing in thecentral opening A', of the base, while its inner end has bearing in theopening E' of the movement-plate. Thelarbor H', of the second-wheelH,has bearing at v opposite ends in the base A, and plate E, and isfurnished with a pinion H2, into which the main -wheel G, meshes. Thesaid secondwheel H, meshes in turn into the pinion I, which is mountedon an arbor I', having bearing in the said plate and base,.its outer endprojecting through the said base, and receiving the bell-hammer. Asherein shown, the bell-hammer is composed of a knocker K, and ahammer-block L', the former havingsliding movement upon the latter,which is fixed to the said projecting outer end of the arbor I'. Theknocker K is elongated and wedge-shaped in form, presenting a taperingappearance in side elevation, as shown by Fig. 2 of the drawings. It isconstructed with a longitudinal opening K', and with two parallelcorresponding ribs lo la, extending inwardly toward each other from theopposite side walls of the said opening K', and taking into grooves L L,formed in the opposite sides of the said harnmer-block L', the saidblock being shorter than the length of the slot K', in the knocker. Theinner ends of the said ribs are continued t0 form two retaining-lingersk2 kwhich are bent toward each other to engage with the adjacent end ofthe block L', whereby the knocker is coupled therewith. When the trainis actuated, the knocker will be thrown into rapid revolution andcarried outward by centrifugal force, so that it will strike the bell,by which it will be thrown inward, moving on the hammer-block, so as toclear `the bell, after which centrifugal force will reassert itself tothrow it out again in position to again strike the bell, which willthrow it inward, and so ou.

It will be observed that the removal of the bell proper from its supportexposes no part of the mechanism of the device but the hammer, the trainbeing located within the base of the bell, and accessible only when thesame is taken od from the surface to which it is attached. With thesurface to which the bell is secured, the base thereof forms a closedchamber for the train which is thus concealed and protected and alsoshielded from dust. When the bell is removed for putting up .the device,the train instead of being exposed upon the outer face of the base, asin bells of this class as heretofore constructed, is concealed withinthe base and thus protected from injury or derangement at such time.

By utilizing the base asa movement-plate, I secure simplicity andcheapness of construction and economy of space, for I thus avoid the useof two movement-plates which are ordinarily required.

I would have it understood that I do not limit myself to the particularconstruction herein shown and described, but hold myself 'at liberty tomake such changes and alterations as fairly fall within the spirit andscope of my invention.

I do not claim broadly locatin ga train within a base to which a bell isattached, as that is old.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a door-bell, the combination with a hollow metal base, comprisinga Hat face and a flange offsetting from the edge thereof, of abell-support projecting from the face of the said base, a bell attachedto the said support, a single movement-plate located within the saidbase in a plane parallel with the face thereof, means for attaching thesaid single movement-plate directly to the said inner face of the base,a train located between the inner face4 of the base and the said plate,and including a Wheel having a hub fitted into an opening formed in thecenter of the face of the base, and adapted to receive a key, and anarbor projecting through the face of the base near the edge thereof; anda bell-hammer secured to the projecting end of thearbor, and strikingthe bell when rotated, substantially as described, and whereby the trainis entirely inrlosed by the base of the device, and but a singlemovement-plate employed.

2. In a door-bell, the combination with a bell, a support therefor, anda train, of abellhammer connected with the said train for rotationthereby, and composed of a hammerblock having its opposite edgeslongitudinally grooved, and a knocker having a longitudinal openinglonger than the said block, and constructed with corresponding parallelribs extending inward from the walls of the said opening and taking intothe grooves of the hammer-block, and extended at their inner` ends toform retaining lingers for coupling the block and knocker together,substantially as described.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

ALBERT A. PAGE.

Witnesses:

WILLIAM S. COOKE, THOMAS E. WRINN.

